Gas producer



July 1.4, 1931. DAAE 1,814,787

GAS PRODUCER Filed May 20, 1925 2 Sheets-Sheet 2 i i Patented July 14, I

NITED] STA nmnmnn'r DAAE, or younes'rown, OHIO T The present inventionrelates broadly to gas producers, and more particularly to con-,

trol mechanism for use therewith whereby the operating conditionsobtaining within the I U producer may at will. I It has heretofore'beenproposed in the art to which the presentfinvention relates to beautomatically controlled provide gas producers having mechamsm ex-' 13tending into the producer and operable in accordancewith variations inthe level of the fuel therein for changing the rate of fuel feed to theproducer. Such constructions,

however, have required special operating conl nections-with the poker,thereby, complicatingto some extent the producer construction. Thepresent invention has for certain of its objects the production of a gasproducer having controlling mechanism responsive to total 26- gaspressure variations within the producer for making such changes in theoperating 'conditions as may be desir'ed.- In this mannerit is possibleto provide-control mechanism entirely independent of the usual produceroperating unit. r

In the accompanying drawings there is illustrated apreferred embodimentof the present invention, it being understood that the drawings do notdefine the limits of my invention, as changes in the construction andoperation disclosedtherein may be made without departing either from thespirit of the inventionor. the scope of my broader claims. In thedrawings: Figure 1 is aview partly in elevation and partly in section,and diagrammatically illustrating one embodiment'of the presentinvention;

I Figure. 2 is -'a diagrammatic vertical sectional view, certain of theparts being shown in elevation, of -the control motor and the operatingmotor;

Figure 3 is a detail vertical sectional View through the control Valve,the section being taken along the line III III of Figure 4;

Figuret is a detail vertical sectional view on the line IV -IV of Figure3; Figure 5 is atop plan view of cover driving mechanism, and

Figure 6 is a vertical sectional view along Application filed May 20,

the producer This enables the effective stroke of-the lever ens:enonucn'a 1925. Serial. Nb. 31,523.) a k the line VIVI of Figure 5looking inthe direction of the arrows.

- In carrying out the present invention there may be provided a gasproducer of any de- -sired, construction.- In theaccompanying drawingsthe producer is illustrated as comprising a body portion 2. a top 3 anda grate 4. It iscustomary in gas producers to pro- [vide for relativemovement between the producer body and the top and grate. .In theillustrated embodiment, the relative movement is accomplished by havingastationary body with a rotatable cover and grate.

For rotating the cover there maybe pro- Vided a suitable drivingmechanism, herein shown as comprisinga motor 5, the. shaft 6" of whichcarries a pinion 7 meshing with a gear 8 carried by one end of a shaft9. The

opposite end of the shaft 9 carries a pinion 10 meshing with a gear 11on a second shaft 12'. Intermediate its ends, the shaft 12- has securedthereto a worm 13 meshing with a worm wheell i keyed toa verticallyextending shaft 15. This shaft in turn. drives a pinion 16 meshing witha ring gear 17 surrounding the cover 3. By reason of this constructionit will be apparent that as the motor 5 is operated the cover 3 will berotated, the

speed of rotation of the cover being extremely slow due .to the gearreduction between the motor and the cover.

The shaft 12 also has secured thereto an I ment about a shaft 22. Thislever carries a pawl 23 adapted to engage a ratchet wheel 24 uponoscillation of the lever, to' thereby rotate the shaft 22, and in turnthe shaft 25 with a ring gear 28 secured to the grate 4. The grate ismounted on suitable bearings 29 permitting free rotation thereof. Theconnection between the pitman 20 and the lever 21 may convenientlycomprise a screw shaft 30' adapted to be turned by hand wheel 31.

and consequent speed of rotation of the grate "end to a lever 21 havingan oscillating movethrough the worm-and worm wheel 26. The shaft 25carries'a driving gear 27 meshing 5 ash receiving and sealing trough 33.Project- 1 ing downwardly into the trough is an adjustable ash plow 34which may be of standard construction in which vertical adjustment iseffected by means of a gear 35 with which meshes a gear 36 on ashaft 37.Or

dinarily this shaft is rotated by means of a hand wheel 38.

Secured to the opposite side of the eccentric band 19 is another pitman39, the upper end of which is pivotally connected to a cross head 40slidable in a slot 41 in one arm of a bell crank 42. This bell crank hasa pivotal mounting 43, andits other arm is extended downwardly tooperatively engage a frictional fuelfeeding plate 44 operable in thebottom ofa feed hopper 45 for feeding fuel therefrom below theadjustable gate 46 as well understood in the art.

The gate 46 is adapted to be adjusted vertically by a bell crank 47pivotally connected to an operating link 48, the opposite end of whichis connected to onefarm of a pivotally mounted bell (frank 49. "Thecross head 40 is likewise. connected by a link 50 to an intermediatepoint of a lever 51 having at one end a pivotal mounting 52, and at itsopposite end a pivotal connection with a link 53 extending substantiallyparallel to the link 48 and connected to one arm of a mounted bell crank54.

Connecting the other arms of the respec:

pivotally r tive bell cranks 49 and 54 is a piston rod 55projectingupwardly from a piston 56 of an operating motor, hereinillustrated as conr-' prlsing a fluid pressure cylinder 57, adapted toraise and lower the rod 55. At an intermediate point therod 55 ispivotally connected to a lever 58 having a pivotal mounting 59 on asupport 60 which also carries the bell cranks 49 and 54. The outer endof the lever 58 is pivotally connected to a link 61 extending downwardlyto a crank arm 62 on a shaft 63. "This shaft carries a gear'64 meshingwith a smaller gear 65 on a shaft 66,

- which shaft carries a. sprocket wheel around which passes a sprocketchain 67. This chain also passes around a second sprocket wheel on theshaft 37 for adjusting the plow 34.

The construction just described will be eifective upon movement of therod 55 in one direction for rotating the gear '35 for raising the plowlto decrease the rate of ash removal from the trough 33, and effectiveupon movement in the opposite direction for lowering the plow todecrease the rate of ash removal Also carried by the support 60 may bean air main 68 anda steam main 69 for supplying air and steamrespectively to the producer as well understood in the operation of gasproducers. The 'airnlain is provided with a valve having an operatingstem 70 connected to a walking lever 71, while the steam main isprovided with a similar valve having an operating stem 7 2'connected toa walking lever 73. These two Walking levers in turn are pivotallyconnected to the piston rod 55. P

The producer is provided with the usual oii'take 74 for the gasesgenerated therein. Communicating with the oli'take is a control motorherein illustrated as comprising a fluid pressure cylinder 75 having aninlet connection 76 and a piston 77 from which a piston rod 78 projectsupwardly. This piston rod is normally urged downwardly by a lighttension spring 79 surrounding the upper end of the rod and connected atone end to the rod and at its opposite end to the support 60. Thispiston rod carries a rack bar 80 meshing with a gear 81 on a valve shaft82. The valve shaft carries a valve 83 within a casing 84, the casinghaving a pressure inlet 85, and the valve having a pressure balancingopening 86. j

The valve casing has a series of outlet connections 87, each connectedby a conduit to an opening in the cylinder 57 .7 The valve has an outletopening 88 adapted upon rotation of the valve to progressivelycommunicate with the outlet connections 87. -As the rod 78 rises, thevalve will be rotated in a clockwise direction, as viewed in Figures 2and 3, to

bring the port 88 firstinto communication with the uppermost outlet"connection 87, which outlet communicates with the cylinder 57 at thelowest point of any of the outlets.

The piston 56 is provided with aport 89 communicating with the chamberbelow the piston by a passage 90. Normally, at the commencement ofoperation of the parts, the

operating piston 56 will be in its lowermost i position; At "this timethe lowermost connection 87 will deliverfluid under pressure to the port89 and thence to the lower end of the operating cylinder 57. This willresult in raisin the piston 56 until such time as the skirt 92 cuts oifthe further delivery of fluid. If the rod 78 continues to rise, the port88 will be brought into registry successively with the outletconnections 87. This will result in a further upward movement of thepiston 56. This operation will continue step by step so long as thepiston 77 of the conto progressively restrict the. feed 'of steam Y andair to the producer through the open 54 by'such upward movement of therod 55.

will result in movement of the lever 51 to the right, as viewed inFigure 1, thereby moving the cross head 40 outwardly in'the slot 41 totions in the producer.

impart a relatively less movement to the bell crank 42.- This will .inturn diminish the fuel I.

feed. The bell crank 49- will be effective for lowering the gate 46 torestrict the feed of fuel, and the lever 58 will rotate the gear 35 insuch direction as to raise the plow and decrease the spee'd of ashremoval. I

The combined influence of the adjustments described will soon result ina decrease in the rate of gas generation in the producer. The controlmotor piston 77 will accordingly move downwardly. The, operatingcylinder may have a regulablq fluidbleed 93 in its lower end togradually bleed pressure therefrom. As the piston 77 moves downwardly,the valve 83 will be rotated-in a counter clockwise direction, and theconnections 87 will be progressively cut off. This w'illpermit theoperating piston 56 to gradually.

lower to its original position. This lowering movement may be assistedby any means such as a spring 94. As the piston 56 and rod 55. movedownwardly, the reverse adjustment takes place with respect to 'thesteam, a1r and fuel feed, and also the ash removal,

thereby again tending to promotegas generation.

It will lye understood that the control motor requires very little powerfor its operation, it being feasible, therefore, to operate it directlyby Variations in pressure conditions within the gas producer. Thiscontrol motor in turn brings an external source of power into play bymeans of which the operating motor is energized to an extent insuringmovement thereof as required to effect the various ad ustments. With the6 construction described, operating'conditio-ns within the producer maybe automatically controlled by the total gas pressure condi- It will beunderstood that any desired form of 'fuel feed 95 may be provided-forthe fuel delivered from the fuel feeding mechanism 44, and that asuitable poker 96 may also be utilized.

The control herein illustrated is adaptable for installations onstandard gas producers, or may be built in ,as'an added feature on -newproducers. I l

The advantages of the present invention arise from the provision ofmeans for automatically and effectively controlling producer conditionsin the producer.

air supplies, and an adjustable ash removing mechanism, a control -motdrresponsive to total gas pressure in the producer,an operating motorcontrolled thereby, said control motor and operating motor beingactuated by fluid at different pressures, and connections between saidoperating motor, said fuel feeding mechanism, saidsteam and airsupplies, and said adjustable ash removing mechanism for adjusting thefuel feeding mechanism, the steam .and air supplies, and the ashremoving mechanism in accordance with pressure variations within the.producer.

2. In a gas generating apparatus, an adjustable fuel feeding mechanism,steam and air supplies, an adjustable -waste material removingmechanism, fluid pressure means responsive to total gaseous pressurevariations in the producer, a fluid pressure motor controlled by sa1dmeans, said fluid pres-.

sure" means and said fluid pressure motor being actuated by fluid atdifferent pressures,

and means operated by 'said fluid pressure motor forvarying theeffectiveness of said fuel feeding mecha'nismpsa'id steam and airsupplies; and said ash removing mechanism:

in accordance with pressure variations With-r inthe produc r.

In com ination with a gas 7 producer having an adjustable fuel feeding.mechanism, steam and air supplies, and an adjustable -ash removingmechanism, a motor movable in response to fluctuations .inthe totalgaseous pressure in the producer, and means controlled by the movementof said motor for adjusting said fuel fee-ding mechanism, said steam andair supplies, and said ash removing mechanism, said motor and said meansbeingactuated by fluid at different pressures. i

4. In combination with a gas producer having an adjustable fuel feedingmechanism, steam and air supplies, and an 'ash re- 1 ceiving trough andplow cooperating therewith, the plow being adjustable in a verticallyextending direction in the trough, means responsive to fluctuations inthe total gaseous pressure conditions in the producer,

and effective for causing adjustment of said fuel feeding mechanism,said steam and air supplies, and said plow.

6. In combination with a gas producer having adjustable means forsupplying an ash forming fuel, steam and air supplies, and anashremoving mechanism, a motor movable in response to fluctuations 1nthe total gaseous pressure in the producer, and meansoperated by themovement of said motor for correspondingly varying the adjustment of thefuel supply means, the steam and air supplies, and the ash removingmechanism, said means being actuated by fluid at a higher pressure thansaid total gas pressure.

7. In a gas generating apparatus, an adjustable fuel feeding mechanism,steam and air supplies, an adjustable waste material removing mechanism,fluid pressure means responsive to total gaseous pressure in theapparatus, a fluid pressure motor, a separate source of operating fluidtherefor, means controlled by said fluid pressure means for controllingfluid pressure from said source, and means controlled by said fluidpressure motor for varying the effectiveness of said fuel feedingmechanism, said steam and air I supplies, and said adjustable ashremoving mechanism.

8. In combination with a gas producer having an adjustable fuel feedingmechanism, steam and air supplies, and an adjustable ash removingmechanism, a motor movable in response to fluctuations in total gasouspressure in the producer, a second motor controlled by said first motor,and means operated by the movement of said second motor for adjustingsaid fuel feeding mechanism, said steam and air supplies, and said ashremoving mechanism, said second motor being actuated by a difierentsource of-pressure than said first motor.

9. In combination with a gas producer having an adjustable fuel feedingmechanism, steam and air supplies, and an adjustable ash removingmechanism, a motor movable in response to fluctuations in total gaseouspressure in the producer, a second motor controlled by said first-motor, and means operated .by the movement of said second motor foradjusting said fuel feeding mechanism, said steam and air supplies, andsaid ash removing mechanism, said second motor comprising a cylinder andpiston, and being actuated by a different means than said first motor.

In testimony whereof I have-hereuntoset my hand.

BEINHARDT DAAE.

